JP3287343B2 - Air conditioner - Google Patents

Abstract

An air conditioner in which an electric/electronic parts unit (14) is disposed so that a longitudinal dimension thereof is not less than 1/3 of a longitudinal dimension of an indoor unit casing (1) or an air outlet (11). An indoor heat exchanger is thereby increased in size to increase the air conditioning efficiency of the air conditioner without increasing the size of an indoor unit casing body. Alternatively, the casing body can be formed compact without reducing the size of the indoor heat exchanger. <IMAGE>

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to an air conditioner in which an electric component unit is arranged in an improved space.

[0002]

2. Description of the Related Art FIG. 28 is a transparent front view showing an indoor unit of a conventional air conditioner. In the main body casing 81,
An indoor heat exchanger 82 is provided in which the front heat exchanger and the rear heat exchanger are connected in an inverted V-shape. And, as it is sandwiched between the inverted V-shaped of this indoor heat exchanger 82,
A cylindrical cross flow fan 83 is arranged. The cross flow fan 83 is driven to rotate by a fan motor 85 provided on the right side of the indoor heat exchanger 82. When the cross flow fan 85 is rotationally driven, the indoor air is sucked in from the front of the indoor heat exchanger 82 and heat is exchanged by the indoor heat exchanger 82. Is blown out into the room.

An auxiliary pipe 86 is drawn out of the indoor heat exchanger 82 from the right side in FIG. The auxiliary pipe 86 is composed of a liquid pipe and a gas pipe which form a refrigerant circuit with an outdoor unit (not shown). The auxiliary pipe 86 is disposed on the right side of the indoor heat exchanger 82 after being drawn from the indoor heat exchanger 82.
The auxiliary pipe 86 is further heat-insulated to form a communication pipe 88, and the communication pipe 88 is provided from the right side to the left side of the main casing 81 through the back of the main casing 81. Further, an electrical component box 90 for disposing electrical components such as a microcomputer and a power amplifier for driving a motor is provided on the right side of the auxiliary pipe 86 so as not to obstruct the air flow path.

[0004]

In the indoor unit, an auxiliary pipe 86 drawn from the indoor heat exchanger 82 is provided on the right side of the indoor heat exchanger 82. Further, an electrical component box 90 is provided on the right side of the auxiliary pipe 86. In other words, two spaces that do not directly contribute to heat exchange, that is, the space for drawing out the auxiliary pipe 86 and the electrical component box 90 occupy the inside of the main body casing 81, and reduce the width of the indoor heat exchanger 82 by the amount of these two spaces. That is, we have to do it. Of course, from the viewpoint of air conditioning efficiency, it is desirable that the width of the indoor heat exchanger 82 be large. On the other hand, however, increasing the width of the main body casing 81 is not desirable from the viewpoint of limiting installation space and maintaining installation workability. Therefore, it is desired to reduce the space in the main casing 81 that does not directly contribute to heat exchange as much as possible, to increase the width of the indoor heat exchanger 82 without increasing the width of the main casing 81, and to improve the air conditioning efficiency. Was rare.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to improve the air conditioning efficiency by increasing the size of a heat exchanger without increasing the size of a main body casing. It is an object of the present invention to provide an air conditioner that can make a main body casing compact without making it possible or reducing the size of the heat exchanger.

[0006]

Therefore, in the air conditioner of the present invention, the electric component unit 14 is constituted as a plurality of units arranged substantially on the same straight line, and the longitudinal length of the indoor unit casing 1 of each unit is determined. The electrical component unit 14 is characterized in that the electrical component unit 14 is arranged so that the total value of the dimensions along the direction is at least １ ／ or more of the total length in the longitudinal direction of the indoor unit casing 1.

According to the air conditioner of the first aspect, the elongated electric component unit 14 composed of a plurality of units arranged substantially on the same straight line is arranged in the indoor unit casing 1, so that the indoor unit casing 1 is provided. It is possible to arrange the electrical component units 14 in various spaces as viewed from a cross section orthogonal to the longitudinal direction. That is, a special space for disposing electrical components is not required on the side of the indoor unit casing 1 as in the related art. Therefore, the longitudinal dimension of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, conversely, in the indoor unit having the same dimensions as the conventional one, the space for disposing the heat exchanger and the fan can be increased, and therefore, the air conditioning performance can be improved as compared with the conventional one. . It is preferable that the total value of each dimension of the electrical component unit 14 along the longitudinal direction of the indoor unit casing 1 be further increased, more preferably, be equal to or more than １ ／ of the longitudinal dimension of the indoor unit casing 1, and more preferably be 2 / 3 or more.

In the air conditioner of the present invention, the electrical component unit 14 is constituted as a plurality of units arranged substantially on the same straight line, and each unit has a dimension along the longitudinal direction of the indoor unit outlet 11. The electric component unit 14 is arranged so that the total value is at least １ ／ or more of the total length in the longitudinal direction of the outlet 11.

The air conditioner of the second aspect also has the advantages of making the indoor unit compact and improving the air conditioning performance, as in the first aspect of the invention. Also in this case, it is preferable that the total value of the respective dimensions of the electrical component unit 14 along the longitudinal direction of the indoor unit outlet 11 be further increased, and more preferably １ ／ or more of the longitudinal dimension of the indoor unit outlet 11. And more preferably 2/3 or more.

In the air conditioner of the third aspect, the electric component unit 14 is constituted as a plurality of units arranged substantially on the same straight line, and the total value of the dimensions of each unit along the axial direction of the indoor unit fan 9 is provided. However, the electrical component unit 14 is arranged so that the length is at least １ ／ or more of the entire length of the indoor unit casing 1 or the outlet 11 in the longitudinal direction.

The air conditioner according to the third aspect also has the advantage that the indoor unit is compact and the air conditioning performance is improved, as in the first aspect of the invention. The third aspect of the present invention relates to a case where the axial direction of the fan 9 matches the longitudinal direction of the indoor unit casing 1 or the outlet 11. Therefore, the first and second aspects of the present invention include a case in which air blowing means other than the fan 9 is used and a case in which the axial direction of the fan 9 does not coincide with the longitudinal direction of the indoor unit casing 1 or the outlet 11. are doing. Also in this case, it is preferable that the total value of each dimension of the electrical component unit 14 along the axial direction of the indoor unit fan 9 is further increased, and preferably the indoor unit casing 1
Alternatively, it is set to １ ／ or more, more preferably ２ or more, of the longitudinal dimension of the outlet 11.

According to the air conditioner of the fourth aspect, an extra space extending in the longitudinal direction is formed in the indoor unit casing 1, and
The electrical component unit 14 is characterized in that the electrical component unit 14 is configured as a plurality of units arranged side by side on substantially the same straight line, and the electrical component unit 14 with a higher dimensional ratio in the longitudinal direction is arranged along the surplus space.

In the fourth aspect of the invention, as in the first to third aspects, the indoor unit can be made compact.
The advantage of improving the air conditioning performance is obtained. In addition, utilizing an extra space extending in the longitudinal direction in the indoor unit casing 1,
Since the configuration is such that the electrical component unit 14 is arranged with a higher dimensional ratio in the longitudinal direction, the electrical component unit 14 can be arranged in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing 1. . That is, a special space for disposing electrical components is not required on the side of the indoor unit casing 1 as in the related art. Therefore, the longitudinal dimension of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in other words, in an indoor unit having the same size, the space for disposing the heat exchanger 4 and the fan 9 can be increased, and therefore, the air conditioning performance can be improved as compared with the related art. In addition, "increase the dimensional ratio in the longitudinal direction" means that the dimension in the longitudinal direction is orthogonal to that.
It means that it is larger than any of the dimensions in the direction, and the magnitude relation of the ratio does not matter. However, it is preferable that the length ratio in the longitudinal direction of the electrical component unit 14 be larger than the length ratio in the longitudinal direction of the indoor unit casing 1.

In the air conditioner of the present invention, the heat exchanger 4 is disposed in the indoor unit casing 1, and the air outlet 11 is provided at a lower portion of the indoor unit casing 1, and the suction port is provided at an upper side of the air outlet 11. 8 are respectively formed, and the drain pan 1 provided at a position above the outlet 11 and below the heat exchanger 4
An electric component unit 14 is arranged between the front panel 3 and the front panel 7 of the indoor unit casing 1, and the electric component unit 14 is configured as a plurality of units arranged substantially on the same straight line. It is characterized by having.

The air conditioner according to claim 5, wherein the heat exchanger (4) is located above the air outlet (11) of the indoor unit.
The position between the drain pan 13 provided on the lower side and the front panel 7 of the indoor unit casing 1 is an area which must be left as a dead space in order to prevent a short circuit between the discharge side and the suction side. Since the electric component unit 14 configured as a plurality of units arranged substantially on the same straight line is arranged in the area serving as the dead space as described above, the space in the indoor unit casing 1 can be more effectively utilized, and As a result, it is possible to make the indoor unit more compact and further improve the air conditioning performance.

An air conditioner according to a sixth aspect of the present invention comprises an electric component unit 14 disposed at a position on the inner rear side of the indoor unit casing 1 or at a position on the outer rear side of the indoor unit casing 1. , Are configured as a plurality of units arranged side by side on substantially the same straight line.

In the air conditioner according to the sixth aspect, in the indoor unit casing 1, the position on the rear side of the indoor unit, which becomes a dead space completely, or the position on the external rear side of the indoor unit casing 1 is substantially the same. Since the electrical component unit 14 configured as a plurality of units arranged in a straight line is arranged, the space in the indoor unit casing 1 can be more effectively utilized, and as a result, the indoor unit can be further compacted, Air conditioning performance can be further improved.

In each of the first to sixth aspects of the present invention, since the electrical component unit 14 is composed of a plurality of units, the degree of freedom in selecting the location of the electrical component unit 14 can be improved, and an appropriate arrangement according to the model is possible. Becomes More specifically, the electrical component unit 14 is composed of a plurality of printed boards, and the plurality of printed boards are mounted on the same board and electrically connected to each other (claim 7). When the electrical component unit 14 is configured as in claim 7, it is preferable that the electrical component unit 14 be formed in a substantially columnar shape as in claim 8, from the viewpoint of compactness and ease of handling.

In the air conditioner of the ninth aspect, the electrical component unit 14 is configured as a plurality of units, and the total value of the dimensions of each unit along the longitudinal direction of the indoor unit casing 1 is equal to the longitudinal direction of the indoor unit casing 1. The unit is characterized in that the units are arranged so as to be shifted from each other both in the longitudinal direction and in the direction intersecting the longitudinal direction so as to have a length of at least １ ／ or more of the entire length.

In the air conditioner according to the tenth aspect, the electrical component unit 14 is configured as a plurality of units, and the total value of the dimensions of each unit along the longitudinal direction of the indoor unit outlet 11 is equal to the longitudinal direction of the outlet 11. The unit is characterized in that the units are arranged so as to be shifted from each other both in the longitudinal direction and in the direction intersecting the longitudinal direction so as to have a length of at least １ ／ or more of the entire length.

In the air conditioner according to the eleventh aspect, the electrical component unit 14 is configured as a plurality of units, and the total value of the dimensions of each unit along the axial direction of the indoor unit fan 9 is equal to the indoor unit casing 1 or the outlet. The units are arranged so as to be shifted from each other both in the longitudinal direction and in the direction intersecting with the longitudinal direction so as to have a length of at least 1/3 or more of the total length in the longitudinal direction. And

In the air conditioners of the ninth to eleventh aspects, the dimensions of the electrical component unit 14 are the same as those of the first to third aspects, and have the advantages of making the indoor unit compact and improving the air conditioning performance. can get. In addition, the electrical component units 14 are arranged so as to be shifted from each other in the longitudinal direction and also in the direction intersecting the longitudinal direction, so that the degree of freedom in selecting the arrangement position is improved. Can,
Appropriate arrangement according to the model is possible.

In the air conditioner of the twelfth aspect, an extra space extending in the longitudinal direction is formed in the indoor unit casing 1, and the electric component unit 14 is constituted as a plurality of units, and the electric component unit 14 is formed in the longitudinal direction along the extra space. Is characterized in that the electrical component units 14 in which the dimensional ratio is increased are displaced from each other in both the longitudinal direction and the direction intersecting the longitudinal direction.

According to the air conditioner of the twelfth aspect, the electrical component unit 14 having an increased dimensional ratio in the longitudinal direction by utilizing the extra space extending in the longitudinal direction in the indoor unit casing 1.
Is arranged, the electrical component unit 14 can be arranged in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing 1. That is, a special space for disposing electrical components is not required on the side of the indoor unit casing 1 as in the related art. Therefore, the longitudinal dimension of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in other words, in an indoor unit having the same size, the space for disposing the heat exchanger 4 and the fan 9 can be increased, and therefore, the air conditioning performance can be improved as compared with the related art. The expression “increase the dimension ratio in the longitudinal direction” means that the dimension in the longitudinal direction is larger than any of the dimensions in two directions perpendicular to the longitudinal direction, and the magnitude relation of the ratio does not matter. However, it is preferable that the length ratio in the longitudinal direction of the electrical component unit 14 be larger than the length ratio in the longitudinal direction of the indoor unit casing 1. In addition, the electrical component units 14 are arranged so as to be shifted from each other in the longitudinal direction and also in the direction intersecting the longitudinal direction, so that the degree of freedom in selecting the arrangement position is improved. It is possible to perform proper arrangement according to the model.

In the air conditioner according to the thirteenth aspect, the heat exchanger 4 is disposed in the indoor unit casing 1, and the air outlet 11 is provided at a lower portion of the indoor unit casing 1, and the suction port is provided at an upper side of the air outlet 11. 8 are respectively formed at a position above the outlet 11 and between the drain pan 13 provided below the heat exchanger 4 and the front panel 7 of the indoor unit casing 1. The electrical component unit 14 configured as a unit is characterized in that the units are arranged so as to be shifted from each other both in the longitudinal direction and in the direction crossing the longitudinal direction.

In the air conditioner according to the thirteenth aspect, a drain pan 13 provided at a position above the air outlet 11 of the indoor unit and below the heat exchanger 4 and a front panel 7 of the indoor unit casing 1. Is a region that must be left as a dead space in order to prevent a short circuit between the outlet side and the inlet side. By arranging the electrical component unit 14 in such a dead space, the space in the indoor unit casing 1 can be more effectively utilized, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. It is possible to do. In addition, the electrical component units 14 are arranged so as to be shifted from each other in the longitudinal direction and also in the direction intersecting the longitudinal direction, so that the degree of freedom in selecting the arrangement position is improved. It is possible to perform proper arrangement according to the model.

In the air conditioner of the present invention, the electric component unit 14 constituted as a plurality of units is provided at a position on the inner rear side of the indoor unit casing 1 or at a position on the outer rear side of the indoor unit casing 1. However, it is characterized in that they are arranged so as to be shifted from each other both in the longitudinal direction and in the direction crossing the longitudinal direction.

In the air conditioner according to the fourteenth aspect,
In the indoor unit casing 1, the electrical component unit 14 is disposed at a position on the back side of the indoor unit, which is a dead space, or at a position on the external back side of the indoor unit casing 1. The space can be used more effectively, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. In addition, the electrical component units 14 are arranged so as to be shifted from each other in the longitudinal direction and also in the direction intersecting the longitudinal direction, so that the degree of freedom in selecting the arrangement position is improved. It is possible to perform proper arrangement according to the model.

According to the air conditioner of the present invention, the dimension of the electrical component unit 14 along the longitudinal direction of the indoor unit casing 1 is as follows:
It is characterized in that the electrical component unit 14 is arranged so as to have substantially the same dimension as the longitudinal dimension of the indoor unit casing 1.

In the air conditioner of the present invention, the size of the electrical component unit 14 along the longitudinal direction of the indoor unit outlet 11 is substantially the same as the length of the outlet 11 in the longitudinal direction.
The electrical component unit 14 is arranged.

In the air conditioner of the present invention, the dimension of the electrical component unit 14 along the axial direction of the indoor unit fan 9 is substantially the same as the longitudinal dimension of the indoor unit casing 1 or the outlet 11. The electric component unit 14 is arranged.

In the air conditioner of the eighteenth aspect, an extra space extending in the longitudinal direction is formed in the indoor unit casing 1, and the electrical component unit 14 having the above-mentioned longitudinal dimension ratio increased is arranged along the extra space. The electrical component unit 14
Is characterized in that it has substantially the same longitudinal dimension as the longitudinal dimension of the indoor unit casing 1 or the outlet 11.

In the air conditioner according to the nineteenth aspect, the heat exchanger 4 is disposed inside the indoor unit casing 1, and the air outlet 11 is provided at a lower portion of the indoor unit casing 1, and the suction port is provided at an upper side of the air outlet 11. 8 are formed at positions above the outlet 11 and between the drain pan 13 provided below the heat exchanger 4 and the front panel 7 of the indoor unit casing 1. The electrical component unit 14 includes the indoor unit casing 1 or the air outlet 11.
Are characterized in that they have substantially the same longitudinal dimension as the longitudinal dimension.

An air conditioner according to a twentieth aspect is configured by disposing the electrical component unit 14 at a position on the inner rear side of the indoor unit casing 1 or at a position on the outer rear side of the indoor unit casing 1.
The electrical component unit 14 is characterized in that it has substantially the same longitudinal dimension as the longitudinal dimension of the indoor unit casing 1 or the outlet 11.

In the air conditioner of claims 15 to 20, the electric component unit 14 has a maximum length that can be configured or a length that is very close to the maximum length, so that the cross-sectional area of the electric component unit 14 is minimized or nearly minimized. As a result, the indoor unit can be significantly reduced in size and the air-conditioning performance can be significantly improved by greatly improving the degree of freedom in the arrangement position of the electrical component unit 14 and greatly reducing the ventilation resistance.

[0036] According to the air conditioner of the eighteenth aspect, the electrical component unit 14 in which the dimensional ratio in the longitudinal direction is increased by utilizing the extra space extending in the longitudinal direction in the indoor unit casing 1.
Is arranged, the electrical component unit 14 can be arranged in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing 1. That is, a special space for disposing electrical components is not required on the side of the indoor unit casing 1 as in the related art. Therefore, the longitudinal dimension of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in other words, in an indoor unit having the same size, the space for disposing the heat exchanger 4 and the fan 9 can be increased, and therefore, the air conditioning performance can be improved as compared with the related art. The expression “increase the dimension ratio in the longitudinal direction” means that the dimension in the longitudinal direction is larger than any of the dimensions in two directions perpendicular to the longitudinal direction, and the magnitude relation of the ratio does not matter. However, it is preferable that the length ratio in the longitudinal direction of the electrical component unit 14 be larger than the length ratio in the longitudinal direction of the indoor unit casing 1.

In the air conditioner according to the nineteenth aspect, the drain pan 13 provided below the heat exchanger 4 at a position above the air outlet 11 of the indoor unit and the front panel 7 of the indoor unit casing 1 are provided. Is a region that must be left as a dead space in order to prevent a short circuit between the outlet side and the inlet side. By arranging the electrical component unit 14 in such a dead space, the space in the indoor unit casing 1 can be more effectively utilized, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. It is possible to do.

In the air conditioner according to the twentieth aspect,
In the indoor unit casing 1, the electrical component unit 14 is disposed at a position on the back side of the indoor unit, which is a dead space, or at a position on the external back side of the indoor unit casing 1. The space can be used more effectively, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved.

In the air conditioner according to the twenty-first aspect, the electrical component unit 14 may be such that the longitudinal dimension of the indoor unit casing 1, the longitudinal dimension of the air outlet 11, or the dimension along the axial direction of the fan 9 is the indoor unit. The heat exchanger 4 extends in the indoor unit casing 1 so as to have a length that is at least 1/3 or more of the longitudinal dimension of the casing 1 or the outlet 11.
Is formed by combining the front heat exchanger 2 and the rear heat exchanger 3 in an inverted V-shape, and the electrical component unit 14 is arranged at the intersection of the heat exchangers 2 and 3. Are arranged so as to be combined.

In the air conditioner according to the twenty-first aspect,
Regarding the dimensions of the electrical component unit 14, similar to the first to third aspects, advantages such as downsizing of the indoor unit and improvement of the air conditioning performance can be obtained. Further, in the present invention, the electrical component unit 14 has a function of sealing the intersection of the front heat exchanger 2 and the rear heat exchanger 3, and thus the electrical component unit 14 has other functions. Also, the use of a dedicated sealing material can be omitted, and the manufacturing cost can be reduced. In addition, if the two functions are shared, the required space is correspondingly reduced, so that in this regard, it is possible to reduce the size of the indoor unit and improve the air conditioning performance. The electrical component unit 14
Is arranged so that the two heat exchangers 2 and 3 are connected at the intersection of the two heat exchangers 2 and 3, it is also possible to separately provide a seal-dedicated member. And improvement of air conditioning performance can be obtained.

In the air conditioner according to a twenty-second aspect, an extra space extending in the longitudinal direction is formed in the indoor unit casing 1, and the electric component unit 14 having the above-mentioned longitudinal dimension ratio increased along the extra space. The heat exchanger 4 in the indoor unit casing 1 connects the front heat exchanger 2 and the rear heat exchanger 3 with a reverse V.
The electrical component unit 14 is characterized in that the electrical component unit 14 is disposed so as to connect the two heat exchangers 2 and 3 at the intersection of the two heat exchangers 2 and 3.

According to the air conditioner of the twenty-second aspect, the electrical component unit 14 in which the length ratio in the longitudinal direction is increased by utilizing the extra space extending in the longitudinal direction in the indoor unit casing 1.
Is arranged, the electrical component unit 14 can be arranged in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing 1. That is, a special space for disposing electrical components is not required on the side of the indoor unit casing 1 as in the related art. Therefore, the longitudinal dimension of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in other words, in an indoor unit having the same size, the space for disposing the heat exchanger 4 and the fan 9 can be increased, and therefore, the air conditioning performance can be improved as compared with the related art. The expression “increase the dimension ratio in the longitudinal direction” means that the dimension in the longitudinal direction is larger than any of the dimensions in two directions perpendicular to the longitudinal direction, and the magnitude relation of the ratio does not matter. However, it is preferable that the length ratio in the longitudinal direction of the electrical component unit 14 be larger than the length ratio in the longitudinal direction of the indoor unit casing 1. Further, in the present invention, the electrical component unit 14 functions to seal the intersection of the front heat exchanger 2 and the rear heat exchanger 3.
By using other functions as well, the use of a dedicated sealing material can be omitted, and the manufacturing cost can be reduced. In addition, if the two functions are shared, the required space is correspondingly reduced, so that in this regard, it is possible to reduce the size of the indoor unit and improve the air conditioning performance. The electrical component unit 14 is connected to both heat exchangers 2,
When the two heat exchangers 2 and 3 are arranged so as to be connected at the intersection of the three, it is also possible to separately provide a seal-dedicated member, and in this case also, it is advantageous that the indoor unit is made compact and the air conditioning performance is improved. Is obtained.

In the air conditioner according to claim 23, the heat exchanger 4 in the indoor unit casing 1 is formed by combining the front heat exchanger 2 and the rear heat exchanger 3 in an inverted V-shape. The electric component unit 14 is arranged so as to connect the two heat exchangers 2 and 3 at the intersection of the heat exchangers 2 and 3.

In the air conditioner according to claim 23,
The electrical component unit 14 includes the front heat exchanger 2 and the rear heat exchanger 3.
However, by using the electrical component unit 14 for other functions as well, it is possible to omit the use of a dedicated sealing material and to reduce the manufacturing cost. In addition, if the two functions are used, the required space is correspondingly reduced, and in this respect, it is possible to reduce the size of the indoor unit and improve the air conditioning performance. In the present invention, the above advantages are obtained regardless of the shape of the electrical component unit 14.

The indoor unit of the air conditioner according to any one of claims 1 to 23 is not limited to a wall-mounted type, but may be a floor-standing type.
Includes various installation forms such as a ceiling embedded type. Therefore, the longitudinal direction may mean the left-right direction when viewed from the user, and may also mean the up-down direction or the horizontal direction. In each of the inventions of claims 15 to 23, the electrical component unit 14 includes a case where the electrical component unit is configured as a single unit and a case where the electrical component unit 14 is configured as a plurality of units. Unit 14
Is composed of a plurality of units, the dimension of the electrical component unit 14 means the total dimension of each unit.

[0046]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a specific embodiment of the air conditioner of the present invention will be described in detail with reference to the drawings. First, the first embodiment will be described. This air conditioner has a structure including an outdoor unit and an indoor unit, and the following description will be made on a wall-mounted indoor unit.

(First Embodiment) First, the internal structure will be described with reference to FIGS. 3, 4 and 5. FIG. First, as shown in FIG. 5, an indoor unit casing 1 of an indoor unit includes a main body casing 1a to which main components such as an indoor heat exchanger 4, a cross flow fan 9, and an electric component unit 14 are attached, and a main body casing 1a. 1
a front grille 5 attached to the front of
And a front panel 7 attached to the front surface of the device, and has a horizontally long shape having a width dimension longer than a vertical dimension as a whole. Of these, the front panel 7 can be arbitrarily removed by a user, but the main body casing 1a and the front grille 5 cannot be removed by the user. As shown in FIGS. 3 and 4, a plate fin-shaped indoor heat exchanger in which the front heat exchanger 2 and the rear heat exchanger 3 are arranged in an inverted V shape in the indoor unit casing 1 is provided. The vessel 4 is arranged. As shown in FIG. 4, the indoor unit casing 1 has a top surface suction port 6 formed in a ceiling portion of a front grille 5 and a front surface suction port 8 formed in a front panel 7. Among them, the top surface suction port 6 is formed by forming a ceiling portion of the front grille 5 in a lattice shape, and the front side suction port 8 extends in the center of the front panel 7 at a slightly upper portion in a lateral direction through an upward opening. It is formed by providing. A cross flow fan 9 is provided inside the inverted V-shaped heat exchanger 4. The cross flow fan 9 is called an axial fan, and is arranged so that the axial direction thereof is along the longitudinal direction of the indoor unit casing 1. And cross flow fan 9
A scroll portion 10 is formed at the back of the indoor unit casing 1 and is smoothly connected to an air outlet 11 opening at a lower portion on the front side of the indoor unit casing 1.

The upper wall surface 12 of the outlet 11 is formed integrally with a drain pan 13 located at the lower part of the front heat exchanger 2. An electrical component unit 14 is disposed at a position on the front side, that is, between the drain pan 13 and the front panel 7. In addition, the back side drain pan 15 is arrange | positioned in the lower part of a back side heat exchanger.

The indoor unit itself and the indoor unit casing 1 are horizontally long as shown in FIGS.
The front inlet 8 and the outlet 11 are formed so as to extend along the longitudinal direction (lateral direction) of the indoor unit casing 1. The electrical component unit 14 is provided with the outlet 1
1 and at a position on the front side of the drain pan 13, as shown in FIGS. 1 and 2, in a mode extending laterally along the longitudinal direction of the indoor unit casing 1. ing.

The specific structure of the electrical component unit 14 will be described with reference to FIGS. 6, 7 and 8. FIG.
In the figure, reference numeral 20 denotes an electrical component case for accommodating the electrical component unit 14, and 21 denotes an electrical component cover that covers the electrical component unit 14, and the electrical component unit 14 is disposed between the two. As shown in FIG. 8, the electrical component unit 14 includes a terminal board 22 as a power input unit connected to a commercial power supply (100 V AC or 200 V AC), an AC circuit unit 23, a DC high-voltage circuit unit 24, and a DC low-voltage circuit unit 25. , CPU control unit 2
6 and a light-emitting display section 27, and as shown in FIGS.
In addition, the DC low voltage circuit section 25 is
In addition, the light emitting display unit 27 is mounted on the display substrate 30. As shown in FIGS. 6 and 7, the terminal board 22, the AC circuit section 23, the DC high-voltage circuit section 24, the DC low-voltage circuit section 25, and the CPU control section 26 extend from the right side to the left side in FIG. 1 are arranged in series along the longitudinal direction, and attached to the electrical component case 20. The display substrate 30 is attached to the back side of the electrical component cover 21, and in this state, the electrical component case 20 is covered with the electrical component cover 21. Openings 31 are formed in the electrical component cover 21 at positions corresponding to the LEDs of the light-emitting display unit 27, 7-segment LEDs, and the like (light-emitting display means) so that the LEDs can be observed from the outside.

In the electrical component unit 14, since the entirety of the electrical component unit 14 is formed horizontally long, the first printed circuit board 2 is formed.
8, the second printed circuit board 29, and the display substrate 30 are all formed as long as possible. And the first
The printed board 28 and the second printed board 29 are connected by a board-to-board connector 39 without using a harness (harnessless).

The DC high-voltage circuit section 24 provided on the first printed circuit board 28 uses heat-generating components such as the SW transformer 41, the rectifier diode 42, and the primary-side SW element 43. Many electrical components 41, 4
As shown in FIG. 7, the reference numerals 2 and 43 are arranged above the first printed circuit board 28 extending in the vertical direction to promote the heat radiation of the electric components 41, 42 and 43, and to make the other electric components To prevent the effect of heat radiation. Further, the electrical component unit 14 is, as described above, the electrical component case 2.
0, and is covered by the electrical component cover 21. The upper part of the electrical component case 20 and the electrical component cover 21
A predetermined gap (a portion indicated by reference numeral 45 in FIG. 7) is provided between the upper and lower parts of the electric component 4, and this gap is opened toward the front side to thereby generate an electric component 4 that generates much self-heat.
The heat radiation of 1, 42 and 43 is promoted. In addition, by opening the heat radiation hole toward the front side, intrusion of drain water is prevented, and the reliability of the device is maintained.

In the above air conditioner, a DC PWM type indoor fan drive motor for driving the cross flow fan 9 is provided on the right side in FIG. 1 and a flap control motor (stepping motor) for driving and controlling the horizontal flap.
1 are arranged on the left side in FIG. 1. As shown in FIG. 8, the indoor fan drive motor 35 is supplied with electric power from the DC high-voltage circuit section 24, and the flap control motor 36 is supplied with electric power. Is supplied with power from the DC low-voltage circuit unit 25. That is, as shown in FIGS. 6 and 7,
The DC high-voltage circuit section 24 is arranged on the right side and the DC low-voltage circuit section 25 is arranged on the left side. Similarly, the indoor fan drive motor 35 as a high-pressure drive actuator is placed on the right side, and the flap control as a low-pressure drive actuator. By arranging the motor for use 36 on the left side, the circuit sections 24 and 25 and the actuators 35 and 36 are arranged as close as possible to shorten the connection harness, thereby facilitating the connection and assembly work. is there.

As shown in FIG. 8, the indoor unit is connected to the outdoor unit 37, and this connection is made to the VVF line 38.
It is done with. The VVF line 38 is composed of a pair of AC power supply lines and a transmission line for internal / external transmission. The VVF line 38 as the internal / external connection line is connected to the terminal board 22 with reference to FIGS. 7 can be inserted and connected from the right side. That is, the direction in which the VVF line 38 is inserted into the terminal board 22 is the longitudinal direction of the indoor unit casing 1 and is the direction from the AC circuit section 23 to the DC low-voltage circuit section 25. By inserting the VVF line 38 in such a direction, the VVF line 38 can be easily inserted and connected, and interference between the VVF line 38 and each of the circuit sections 23, 24, 25, 26 can be prevented. This makes it possible to simplify the line routing work and reduce noise.

Then, each opening 31 of the electrical component cover 21 is formed.
31 is the observation window 3 of the front grill 5 as shown in FIG.
2 allows the user to observe from outside. The front panel 5 does not cover the entire front grille 5 as shown in the figure, but exposes a lower portion of the front grille 5 to the outside.

The characteristic point of the air conditioner is that, as shown in FIG. 12, the dimension a of the electrical component unit 14 along the longitudinal direction of the indoor unit casing 1 is the longitudinal dimension of the indoor unit casing 1. The electrical component unit 14 is arranged so as to be at least 1/3 or more of the length of the LA. The longer the length a of the electrical component unit 14 is, the more preferable it is. Therefore, the length a is at least １ ／ or more of the longitudinal dimension LA of the indoor unit casing 1, and more preferably at least the length LA of the indoor unit casing 1. Make the length 2/3 or more. Most preferably, the dimension a of the electrical component unit 14 along the longitudinal direction of the indoor unit casing 1 is set to be substantially equal to the longitudinal dimension LA of the indoor unit casing 1 (see FIG. 18). If the maximum length that can constitute the electrical component unit 14 or a length very close to the maximum length can be used, the cross-sectional area can be minimized or nearly minimized, and the degree of freedom in the arrangement position of the electrical component unit 14 can be greatly increased. Improvement, a significant decrease in ventilation resistance, etc.
It is possible to significantly reduce the size of the indoor unit and significantly improve the air-conditioning performance.

According to the above air conditioner, since the elongated electrical component unit 14 is disposed in the indoor unit casing 1, the electrical component unit 14 is disposed on the side portion of the indoor unit casing 1 as in the conventional case. No special space is needed. Therefore, the longitudinal dimension of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in other words, in the indoor unit having the same dimensions as the conventional one, the space for disposing the indoor heat exchanger 4 and the cross flow fan 9 can be increased, and therefore, the air conditioning performance is improved as compared with the conventional one. It becomes possible. Further, since the electrical component unit 14 has an elongated shape and is laid out left and right evenly along the longitudinal direction, even if the airflow resistance on the suction side becomes unbalanced, the airflow resistance on the left and right is unbalanced. Therefore, occurrence of troubles such as dew condensation on the rotor can be suppressed. Further, the position above the outlet 11 and on the front side of the drain pan 13 is a portion that needs to be provided as a dead space in order to prevent a short circuit between the blowout side and the suction side. Since the electrical component unit 14 is disposed in the indoor unit 1, the space in the indoor unit casing 1 can be more effectively utilized, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved.

In the air conditioner, the electrical component unit 14 is housed in the electrical component case 20 and is covered with the electrical component cover 21. Therefore, the drain pan 13
It is possible to suppress the drain water in the electric component unit 14 from adversely affecting the electric component unit 14, thereby improving the reliability of the electric component unit 14. In addition, it is possible to suppress the water injection for checking the drain drain function at the time of the installation work, or the cleaning agent and the cleaning water at the time of cleaning the indoor heat exchanger 4 from adversely affecting the electric component unit 14. The reliability of the unit 14 can be improved. It should be noted that the shielding mechanism for the drain water is only required to be able to suppress adverse effects such as a short circuit due to the drain water, and it is not always necessary to completely prevent infiltration of the drain water. This includes a measure of omitting any of the covers 21 or simply providing a partition plate. In the air conditioner, if the front panel 7, the front grille 5, and the electrical component cover 21 are removed, the electrical component unit 14 is exposed to the outside. In this state, inspection, replacement, repair, and the like of each electric component can be performed from the front thereof, so that component replacement and maintenance work can be simplified.

In the air conditioner, a light-emitting display 27 is provided on the electrical component unit 14. The light-emitting display 27 can be viewed from the outside through an observation window 32 on the front side of the indoor unit casing 1. The light emitting display unit 27 is integrated with the electrical component unit 14 in this manner.
Is provided, it is not necessary to increase the wiring length of a lead wire or the like for electrically connecting the electrical component unit 14 and the light emitting display unit 27 as in the related art, and the wiring length is significantly increased as compared with the conventional case. In addition to shortening the cost, the cost can be reduced, and the maintenance work can be facilitated by arranging each of the electric components and the light emitting display unit 27 close to each other. Further, since the electrical component unit 14 is housed in the electrical component case 20 and covered with the electrical component cover 21 to form a single unit in a columnar shape, manufacturing and handling are facilitated, and cost reduction can be achieved. At the same time, reliability is improved.

FIG. 10 schematically shows the arrangement of each circuit. As described above, the respective circuit sections of the terminal board 22, the AC circuit section 23, the DC high-voltage circuit section 24, and the DC low-voltage circuit section 25 are arranged along the longitudinal direction of the indoor unit casing 1. FIG. 11 shows a modified example thereof. FIG. 11 (a) shows a layout suitable for a product having an AC-DC converter outside the machine, and each circuit of a DC high-voltage circuit 24 and a DC low-voltage circuit 25. The unit is arranged along the longitudinal direction of the indoor unit casing 1. FIG. 2B shows a layout suitable for a product that performs step-down by using a transformer or the like. 1 are arranged along the longitudinal direction.

(Modification Example Regarding Dimensions of Electrical Component Unit) As shown in FIG. 13, the dimension of the electrical component unit 14 is such that the dimension a along the longitudinal direction of the outlet 11 of the indoor unit is the outlet 1
It may be arranged so as to be at least 1/3 or more of one longitudinal dimension LB. Also in this case, the electrical component unit 1
It is preferable that the dimension a along the longitudinal direction of the indoor unit outlet 11 of the indoor unit 4 is further lengthened, and preferably the indoor unit outlet 11
１ ／ or more of the longitudinal dimension LB, more preferably 2
/ 3 or more. Most preferably, the dimension a along the longitudinal direction of the indoor unit outlet 11 of the electrical component unit 14 is
This is to make the length substantially equal to the longitudinal dimension LB of the outlet 11 (see FIG. 18). Thus, the electrical component unit 1
4, the cross-sectional area can be minimized or nearly minimized, and the degree of freedom in the arrangement position of the electrical component unit 14 can be greatly improved, and the ventilation resistance can be significantly increased. Due to the decrease or the like, it is possible to significantly reduce the size of the indoor unit and significantly improve the air conditioning performance. As shown in FIG. 14, when the axial direction of the cross flow fan 9 matches the longitudinal direction of the indoor unit casing 1 or the outlet 11, the dimension of the electrical component unit 14 along the axial direction of the cross flow fan 9. a may be arranged so as to be at least １ ／ or more of the longitudinal dimensions LA and LB of the indoor unit casing 1 or the outlet 11. Also in this case, it is preferable that the dimension a of the electrical component unit 14 along the axial direction of the indoor unit fan 9 is further increased, and it is preferable that the dimension a of the longitudinal direction LA, LB of the indoor unit casing 1 or the outlet 11 is 1 /. It is 2 or more, more preferably 2/3 or more.

(Modification Example Regarding Shape of Electrical Component Unit) In the air conditioner, the electrical component unit 14 is housed in the electrical component case 20 and covered with the electrical component cover 21 to form a single unit as a columnar unit. (Fig. 1
8) Although manufacturing and handling are facilitated, cost is reduced, and reliability is improved. However, as shown in FIG. 16, a plurality of units 14a in which the electrical component units 14 are arranged substantially on a straight line, 14b and 14c.
Specifically, the electrical component unit 14 is constituted by a plurality of printed boards, and the plurality of printed boards are mounted on the same board and are electrically connected to each other. When the electrical component unit 14 is configured as described above, the electrical component unit 14 is preferably formed in a substantially columnar shape as a whole from the viewpoint of compactness and easy handling. Further, as shown in FIG. 17, the electrical component unit 14 is configured as a plurality of units 14a, 14b, 14c, and the units 14a, 14b, 14c are also arranged in the longitudinal direction and in the direction intersecting with the longitudinal direction ( The air flow direction) may also be shifted from each other. With this configuration, the degree of freedom in selecting the arrangement position can be improved, and appropriate arrangement according to the model can be performed.

When the electrical component unit 14 is divided into a plurality of units as described above, the total value (a + b + c) of the dimensions of each electrical component unit 14 along the longitudinal direction of the indoor unit casing 1 is determined by The electrical component units 14 are arranged so as to be at least 1/3 or more of the total length LA in the longitudinal direction of the casing 1 or the total value of the dimensions of the electrical unit 14 along the longitudinal direction of the indoor unit outlet 11. The electric component units 14 are arranged such that (a + b + c) is at least 1/3 or more of the total length LB of the outlet 11 in the longitudinal direction, or each electric component unit 14
Of the dimensions of the indoor unit fan 9 along the axial direction (a + b
The electrical component unit 14 may be arranged so that + c) is at least １ ／ or more of the total length LA, LB of the indoor unit casing 1 or the outlet 11 in the longitudinal direction. That is, when the electrical component unit 14 is composed of a plurality of units, the length of the electrical component unit 14 is defined by the total value (a + b + c) of the dimensions of the electrical component unit 14, thereby reducing the size of the indoor unit and increasing the air conditioning. The advantage of improved performance is obtained. Also in this case, it is preferable that the total value (a + b + c) of the dimensions of the electrical component unit 14 be further increased, and more preferably, be equal to or more than の of the longitudinal dimensions LA and LB of the indoor unit casing 1 or the outlet 11. More preferably, it is 2/3 or more.

In the height direction (vertical direction) perpendicular to the longitudinal direction of the indoor unit casing 1, as shown in FIG. It is preferable that the height is set to 1/3 or less of the total length T in the height direction. With this configuration, the ventilation resistance can be further reduced, and the degree of freedom in the arrangement of the electrical component unit 14 can be improved.

(Modification Example Regarding Arrangement Position of Electrical Component Unit) In the above embodiment, the electrical component unit 14 is
1, the electrical component unit 14 can be changed as follows, although it is located at a position on the front side of the drain pan 13. In the following modified examples, the above description regarding the size and shape of the electrical component unit 14 is applied as it is. First, in FIG.
The electrical component unit 14 is disposed in an air passage 33 between the front heat exchanger 2 and the front panel 7. In this case, since the cross-sectional area of the electrical component unit 14 is reduced as described above, it is possible to suppress an increase in ventilation resistance. In addition, during cooling and heating operation, the electric component unit 1
4 can be cooled, and the reliability of electrical components can be improved. Further, since the electrical component unit 14 has an elongated shape and is laid out left and right evenly along the longitudinal direction, even if the airflow resistance on the suction side becomes unbalanced, the airflow resistance on the left and right is unbalanced. Therefore, occurrence of troubles such as dew condensation on the rotor can be suppressed.

In FIGS. 21 and 22, the indoor heat exchanger 4 in the indoor unit casing 1 is constructed by combining the front heat exchanger 2 and the rear heat exchanger 3 in an inverted V-shape as described above. At the same time, the electric component unit 14 is arranged so as to connect the two heat exchangers 2 and 3 at the intersection of the front heat exchanger 2 and the rear heat exchanger 3. In the case of FIG. 21, the long side in the cross section of the electric component unit 14 is arranged along the air flow, and in the case of FIG.
Are arranged in such a manner that the short sides in the cross-section along the air flow follow the air flow. In this modified example, the electrical component unit 14 has a function of sealing the intersection of the front heat exchanger 2 and the rear heat exchanger 3, and thus the electrical component unit 14 has other functions. The dual use can omit the use of a special sealing material and reduce the manufacturing cost. In addition, if the two functions are shared, the required space is correspondingly reduced, so that in this regard, it is possible to reduce the size of the indoor unit and improve the air conditioning performance. Also in these cases, during both the cooling and heating operations,
The electric component unit 14 can be cooled by the circulating air, and the reliability of the electric component can be improved. When the electrical component unit 14 is disposed so as to connect the two heat exchangers 2 and 3 at the intersection of the two heat exchangers 2 and 3, it is also possible to separately provide a seal-dedicated member. In addition, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained.

In FIG. 23, the electrical component unit 14
Are arranged further rearward of the rear heat exchanger 3 in the indoor unit casing 1. Thus, the indoor unit casing 1
, The electrical component unit 14 is arranged in a region located on the rear side of the indoor unit, which is a dead space, so that the space in the indoor unit casing 1 can be more effectively utilized, and as a result, the indoor unit Can be further compacted, and the air conditioning performance can be further improved.

In FIG. 24, the electrical component unit 14
Are arranged in the back region of the scroll portion 10 constituting the back wall of the outlet passage. As described above, since the electrical component unit 14 is arranged in the rear area of the scroll unit 10 located on the back side of the indoor unit, which is a dead space inside the indoor unit casing 1, the indoor unit casing 1
Space can be used more effectively, and as a result,
It is possible to make the indoor unit more compact and further improve the air conditioning performance. Further, in this case, the electrical component unit 14 is disposed outside the airflow passage in the indoor unit casing 1, but as a result, it is possible to suppress an increase in the ventilation resistance directly by the electrical component unit 14. Therefore, it is possible to suppress a decrease in air conditioning performance due to the installation of the electrical component unit 14.

(Other Modifications Regarding Dimensions, Shapes, and Arrangements of Electrical Component Units) In the above embodiments, the longitudinal dimension of the electrical component unit 14 is the same as the longitudinal dimension of the indoor unit casing 1 or the outlet 11. , The electrical component unit 14
Is not limited to the above, and can be changed by devising the arrangement. For example,
The electrical component unit 1 having an increased dimensional ratio in the longitudinal direction by using a surplus space extending in the longitudinal direction in the indoor unit casing 1.
If the configuration is such that the electrical component unit 4 is disposed, the electrical component unit 14 can be disposed in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing 1. That is, a special space for disposing electrical components is not required on the side of the indoor unit casing 1 as in the related art.
Therefore, the longitudinal dimension of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in other words, in an indoor unit having the same size, the space for disposing the heat exchanger 4 and the fan 9 can be increased, and therefore, the air conditioning performance can be improved as compared with the related art. The expression “increase the dimension ratio in the longitudinal direction” means that the dimension in the longitudinal direction is larger than any of the dimensions in two directions perpendicular to the longitudinal direction, and the magnitude relation of the ratio does not matter. However, it is preferable that the length ratio in the longitudinal direction of the electrical component unit 14 be larger than the length ratio in the longitudinal direction of the indoor unit casing 1.

In the embodiment described above, the electrical component unit 14 is located in a region adjacent to the outlet 11 and the inlet 8, at a position above the outlet 11, and between the drain pan 13 and the front surface. Position between panel 7 (FIG. 4), position in air passage between front panel 7 and front heat exchanger 2 (FIG. 20), intersection of front heat exchanger 2 and rear heat exchanger 3 It is preferable to set the position (FIGS. 21 and 22), the position on the back side in the indoor unit casing 1 (FIG. 23), and the region behind the scroll portion 10 (FIG. 24). 16 and 17, when the electrical component units 14 are dispersedly arranged, the individual electrical component units 14a, 14b, 14c
Should be increased in the longitudinal direction, and it is preferable to increase the longitudinal dimension ratio of the entire layout. The electrical component unit 14 is shown in FIG.
As shown in FIG. 22, when the two heat exchangers 2 and 3 are arranged so as to be coupled at the intersection position of the two heat exchangers 2 and 3, a seal-dedicated member may be separately provided. The advantages of making the indoor unit compact and improving the air conditioning performance are obtained.

If the electrical component unit 14 is arranged with sufficient care, there may be no need to increase the dimensional ratio in the longitudinal direction as described above. For example, the outlet 1 of the indoor unit
1 and between the drain pan 13 provided below the heat exchanger 4 and the front panel 7 of the indoor unit casing 1, the short circuit between the blow-out side and the suction side is prevented. Therefore, if the electrical component unit 14 is disposed in the dead space as shown in FIG. 4 in the dead space, the space in the indoor unit casing 1 can be further reduced. It can be used more effectively, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. In this case, the indoor unit casing 1, the outlet 11, the inlet 8, and the electrical component unit 14 may have any shape, but the horizontally long indoor unit casing 1 is used, and the outlet 11, the inlet 8 Is formed so as to extend in the lateral direction, and the horizontally long electrical component unit 14 is extended along the air outlet 11, so that the effect of effectively utilizing the space can be further exhibited. As a result, the indoor unit can be further compacted or the air conditioning can be improved. The performance can be further improved.

Further, the electric component unit 14 is disposed so as to fulfill the function of sealing the intersection of the front heat exchanger 2 and the rear heat exchanger 3 (FIGS. 21 and 22).
By using the other functions also in 4, it is possible to omit the use of a dedicated sealing material and reduce the manufacturing cost. In addition, if the two functions are used, the required space is correspondingly reduced, and in this respect, it is possible to reduce the size of the indoor unit and improve the air conditioning performance.

Further, in the indoor unit casing 1, a position on the back side of the indoor unit (FIG.
3) Alternatively, if the electrical component unit 14 is arranged at a position on the outside rear side of the indoor unit casing 1 (FIG. 24), the space inside the indoor unit casing 1 can be more effectively utilized, and as a result, the indoor unit can be further used. It is possible to reduce the size and further improve the air conditioning performance.

As described above, when the electrical component unit 14 is disposed inside the indoor unit casing 1 on the rear side where the air flow is hardly affected, or outside the indoor unit casing 1, the electrical component unit 14 The size and shape are not limited to the above embodiments. For example, as shown in FIGS. 25 and 26, if the electrical component unit 14 is configured as a thin plate-shaped unit, it is disposed at a position on the inner back side of the indoor unit casing 1 or a position on the outer back side of the indoor unit casing 1. It is possible. In this case, the electrical component units 14 can be freely formed, such as a square, a rectangle, a bar, or the like, and, in some cases, can be vertically arranged as shown in FIG. In this air conditioner, the electrical component unit 14 is disposed in the indoor unit casing 1 at a position on the rear side of the indoor unit, which is a dead space, or at a position on the external back side of the indoor unit casing 1. In addition, the space in the indoor unit casing 1 can be more effectively utilized, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved.

When the electrical component unit 14 is disposed on the back side of the indoor unit casing 1, as shown in FIG. 27, the electrical component unit 14 is embedded in the scroll section 10 made of, for example, a foamed synthetic resin material. For example, the space in the indoor unit casing 1 can be more effectively utilized without increasing the ventilation resistance in the air flow passage. As a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. It becomes possible.

(Other Modifications) The indoor heat exchanger 4 in the indoor unit casing 1 is preferably disposed over substantially the entire area of the indoor unit casing 1 or the outlet 11. With this configuration, the effective area of the heat exchanger 4 in the indoor unit casing 1 can be increased, and the air conditioning performance can be improved. Further, if the same performance as that of the related art is used, the indoor unit casing 1 can be made more compact than before. Regarding the expression of “substantially the whole area”, regarding the size of the indoor heat exchanger 4, this does not mean only the size of the portion having the plate fin, but a U-shaped heat transfer tube on the side, It means a dimension including a branch pipe section and the like on the opposite side. The electrical component unit 14 is preferably provided detachably, and in this case, assemblability and maintainability can be improved.

Further, in the first embodiment, the electrical component unit 14 is arranged so that the arrangement direction thereof is orthogonal to each plate fin of the indoor heat exchanger 4.
According to this configuration, even if turbulence occurs in the flowing air flow due to the arrangement of the electrical component unit 14, the turbulence occurs in a direction parallel to the direction in which the plate fins are arranged. An increase in flow resistance when passing through the plate fins can be suppressed, and as a result, a decrease in air conditioning performance can be suppressed. Further, since the electrical component unit 14 and the plate fins are arranged orthogonally, the internal structure is symmetrical, and the manufacturing cost can be reduced. Further, in the above air conditioner, the length in the longitudinal direction of the fan mechanism including the fan 9 and the fan motor is substantially equal to the length in the longitudinal direction of the fan mechanism of the indoor heat exchanger 4. Thus, the capacity of the fan 9 and the indoor heat exchanger 4 can be maximized. The longitudinal dimension of the indoor heat exchanger 4 as described above refers to a dimension including not only the portion having the plate fins in the indoor heat exchanger 4 but also the U-shaped heat transfer tube portions at both ends. Means.

The indoor unit of the air conditioner is not limited to a wall-mounted type, but includes various installation types such as a floor-mounted type and a ceiling-mounted type. Therefore, the longitudinal direction may mean the left-right direction when viewed from the user, and may also mean the up-down direction,
Or it may mean the horizontal direction. In this specification, the expression “horizontally long” means that w / h> 1 when a vertical dimension is h and a horizontal dimension is w.

[0081]

According to the air conditioner of the first to sixth aspects, since the elongated electrical component unit is disposed in the indoor unit casing, the longitudinal size of the indoor unit can be reduced, and the indoor unit is compact. Or, conversely, in the indoor unit having the same dimensions as the conventional one, the space for disposing the heat exchanger and the fan can be increased, so that the air conditioning performance can be improved as compared with the conventional one. In addition, since the electrical component unit is constituted by a plurality of units, the degree of freedom in selecting the arrangement position can be improved, and proper arrangement according to the model can be performed.

According to the air conditioner of the seventh aspect, the manufacture and assembly of the electrical component unit are easy.

According to the air conditioner of the eighth aspect, it is possible to reduce the size of the electrical component unit and to easily handle it.

According to the air conditioner of the ninth to fourteenth aspects, similar to the first to sixth aspects, the advantages of the size of the electrical component unit can be obtained, such as the downsizing of the indoor unit and the improvement of the air conditioning performance. Can be In addition, the degree of freedom in selecting the arrangement position of the electrical component unit can be improved, and appropriate arrangement according to the model can be performed.

According to the air conditioner of claims 15 to 20, since the electrical component unit has the maximum length that can be configured, or has a length very close to the maximum length, it is possible to reduce the cross-sectional area of the electrical component unit to the minimum or the minimum. As a result, the degree of freedom in arranging the electrical component units is greatly improved, the ventilation resistance is greatly reduced, and the like, so that the indoor unit can be significantly reduced in size and the air conditioning performance can be significantly improved.

According to the air conditioner of the twenty-first aspect, with respect to the size of the electrical component unit, advantages such as a compact indoor unit and an improvement in air conditioning performance can be obtained. Further, in the present invention, since the electrical component unit performs the sealing function, the use of a dedicated sealing material can be omitted, the manufacturing cost can be reduced, and the required space is also reduced. It is possible to reduce the size and improve the air conditioning performance.

According to the air conditioner of the twenty-second aspect, since the electrical component unit having the increased dimensional ratio in the longitudinal direction is arranged, the longitudinal dimension of the indoor unit can be reduced, and the indoor unit can be downsized. Or, conversely, in an indoor unit having the same dimensions as the conventional one, the arrangement space for the heat exchanger and the fan can be increased, and therefore, the air conditioning performance can be improved as compared with the conventional one. Further, with respect to the size of the electrical component unit, advantages such as downsizing of the indoor unit and improvement of the air conditioning performance can be obtained. Further, in the present invention, since the electrical component unit performs the sealing function, the use of a dedicated sealing material can be omitted, the manufacturing cost can be reduced, and the required space is also reduced. It is possible to reduce the size and improve the air conditioning performance.

According to the air conditioner of the twenty-third aspect, since the electrical component unit performs a sealing function, the use of a dedicated sealing material can be omitted, the manufacturing cost can be reduced, and the required space can be reduced. Therefore, also in this respect, it is possible to reduce the size of the indoor unit and improve the air conditioning performance.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a first embodiment of an air conditioner of the present invention.

FIG. 2 is a schematic front view similar to the above showing the first embodiment of the air conditioner of the present invention.

FIG. 3 is a schematic side view showing a first embodiment of the air conditioner of the present invention.

FIG. 4 is a sectional view showing a first embodiment of the air conditioner of the present invention.

FIG. 5 is an exploded perspective view showing the first embodiment of the air conditioner of the present invention.

FIG. 6 is an exploded perspective view of an example of an electrical component unit used in the air conditioner.

FIG. 7 is a schematic plan view of the electrical component unit.

FIG. 8 is a block diagram showing a circuit configuration of the electrical component unit.

FIG. 9 is a cross-sectional view showing a structure near a light-emitting display unit in the electrical component unit.

FIG. 10 is a block diagram showing a circuit configuration of the electrical component unit.

FIG. 11 is a block diagram showing a modified example of the circuit configuration of the electrical component unit.

FIG. 12 is a schematic diagram showing an example of the arrangement of electrical components units of the air conditioner.

FIG. 13 is a schematic diagram showing a modified example of the arrangement example of the electrical component unit of the air conditioner.

FIG. 14 is a schematic diagram showing another modification of the arrangement example of the electrical component unit of the air conditioner.

FIG. 15 is a schematic diagram showing an example of the arrangement of electrical components units of the air conditioner.

FIG. 16 is a schematic view showing an arrangement example in a case where the electric component unit is divided and configured.

FIG. 17 is a schematic diagram showing another example of arrangement when the electrical component unit is divided and configured.

FIG. 18 is a schematic view showing an example of the arrangement of electrical components units of the air conditioner.

FIG. 19 is a schematic diagram showing an example of the arrangement of electrical components units of the air conditioner.

FIG. 20 is a cross-sectional view showing a modification of the arrangement of the electrical component unit of the air conditioner.

FIG. 21 is a sectional view showing another arrangement example of the electrical component unit of the air conditioner.

FIG. 22 is a cross-sectional view showing still another arrangement example of the electrical component unit of the air conditioner.

FIG. 23 is a sectional view showing another arrangement example of the electrical component unit of the air conditioner.

FIG. 24 is a sectional view showing another arrangement example of the electrical component unit of the air conditioner.

FIG. 25 is a schematic view showing an example of the arrangement of electrical components units of the air conditioner.

FIG. 26 is a schematic diagram showing an example of the arrangement of electrical components units of the air conditioner.

FIG. 27 is a schematic cross-sectional view showing an example of the arrangement of electrical components units of the air conditioner.

FIG. 28 is a schematic front view showing a conventional arrangement of the electrical component unit of the air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Indoor unit casing 2 Front heat exchanger 3 Rear heat exchanger 4 Indoor heat exchanger 7 Front panel 8 Inlet 9 Cross flow fan 10 Scroll part 11 Outlet 13 Drain pan 14 Electrical equipment unit 27 Light emitting display part (light emitting display means ) 32 observation window

Continuation of front page (72) Inventor Yuichi Terada 1000-2 Oya, Okamoto-cho, Kusatsu-shi, Shiga Daikin Industries, Ltd. Shiga Works (56) References JP-A-8-110085 (JP, A) JP-A-7 JP-A-243662 (JP, A) JP-A-7-133941 (JP, A) JP-A-10-332173 (JP, A) JP-A 8-135998 (JP, A) JP-A-9-133400 (JP, A) JP-A-10-339473 (JP, A) JP-A 62-124415 (JP, U) JP-A 3-80215 (JP, U) JP-A 59-34224 (JP, U) Field (Int.Cl. ⁷ , DB name) F24F 1/00

Claims (23)

(57) [Claims] The electric component unit (14) is substantially co-linear.
It is configured as a plurality of units arranged side by side
The electrical component unit (14) is set so that the total value of the dimensions of the indoor unit casing (1) along the longitudinal direction of the indoor unit casing (1) is at least １ ／ or more of the total length of the indoor unit casing (1) in the longitudinal direction. An air conditioner characterized by being arranged. 2. The electrical component unit (14) is substantially co-linear.
It is configured as a plurality of units arranged side by side
The total value of the longitudinal direction along the dimension of the bets of the indoor unit air outlet (11), the entire length of the air outlet (11) of at least 1 /
An air conditioner, wherein the electrical component unit (14) is arranged to have a length of 3 or more. 3. The electrical component unit (14) is substantially co-linear.
It is configured as a plurality of units arranged side by side
So that the total value of the dimensions of the indoor unit fan (9) along the axial direction is at least １ ／ or more of the total length of the indoor unit casing (1) or the outlet (11) in the longitudinal direction.
An air conditioner comprising an electrical component unit (14). 4. An extra space extending in the longitudinal direction is formed in the indoor unit casing (1), and the electrical component unit (1 ) is formed.
4) is a plurality of units arranged side by side on substantially the same straight line
Configured, an air conditioner which is characterized in that a electrical component unit (14) with increased above longitudinal dimension ratios along the surplus space. 5. A heat exchanger (4) is arranged in the indoor unit casing (1), an outlet (11) is provided on a lower side of the indoor unit casing (1), and an upper side is provided above the outlet (11). And a drain pan (13) provided above the blower outlet (11) and below the heat exchanger (4) and the indoor unit casing (1). The electrical component unit (1) is located between the electronic component unit (1) and the front panel (7).
4), and the electrical component unit (14)
It is configured as multiple units arranged side by side on substantially the same straight line.
Air conditioner, characterized by that. 6. become place the electric component unit (14) outside the rear side of the position of the internal rear side of the position or the indoor unit casing (1) of the indoor unit casing (1), the electrical Shinayu
The knit (14) is composed of a plurality of uni
An air conditioner characterized by being configured as a unit. 7. The unit according to claim 1, wherein the units are mounted on the same substrate and are connected to each other .
6. The air conditioner of any one of 6 . 8. The air conditioner according to claim 1 , wherein said electrical component unit (14) is formed in a substantially columnar shape. 9. The electrical component unit (14) includes a plurality of units.
So that the total value of the dimensions along the longitudinal direction of the indoor unit casing (1) of each unit is at least １ ／ or more of the total length of the indoor unit casing (1) in the longitudinal direction. Each unit , even in the longitudinal direction,
An air conditioner characterized in that the air conditioners are also shifted from each other in a direction intersecting with the longitudinal direction . 10. The electrical component unit (14) includes a plurality of units.
Knitted, and the indoor unit outlet (1
The total value of the dimensions along the longitudinal direction of 1) is the outlet (11)
Each unit in the longitudinal direction so that the length is at least 1/3 or more of the total length in the longitudinal direction.
An air conditioner characterized in that the air conditioners are arranged so as to be shifted from each other in a direction intersecting the direction . 11. The electrical component unit (14) includes a plurality of units.
Knitted , indoor unit fan of each unit (9)
Each unit is placed in the longitudinal direction such that the total value of the dimensions along the axial direction of the unit becomes at least 1/3 or more of the total length in the longitudinal direction of the indoor unit casing (1) or the outlet (11).
Direction, and also in the direction crossing the longitudinal direction
An air conditioner characterized by being offset from each other . 12. An electrical component unit, wherein an extra space extending in the longitudinal direction is formed in the indoor unit casing (1).
(14) is configured as a plurality of units, and the electrical component unit (14) in which the dimensional ratio in the longitudinal direction is increased along the surplus space .
Also, they will be shifted from each other in the direction that intersects the longitudinal direction.
An air conditioner characterized by being urchin arranged. 13. A heat exchanger (4) is arranged in an indoor unit casing (1), an outlet (11) is provided below the indoor unit casing (1), and an upper side is provided above the outlet (11). And a drain pan (13) provided above the blower outlet (11) and below the heat exchanger (4) and the indoor unit casing (1). As a plurality of units at a position between the front panel (7)
Each of the configured electrical component units (14)
In the longitudinal direction and in the direction crossing the longitudinal direction
An air conditioner characterized by being arranged so as to be displaced from each other . To 14. External rear side of the position of the internal rear side of the position or the indoor unit casing (1) of the indoor unit casing (1), the electric component unit that is configured as a plurality of units (14), each unit , Also in the longitudinal direction,
An air conditioner characterized by being arranged so as to be shifted from each other even in a direction intersecting with the longitudinal direction . 15. A size of the electrical component unit (14) along the longitudinal direction of the indoor unit casing (1) is substantially the same as the longitudinal size of the indoor unit casing (1).
An air conditioner comprising an electrical component unit (14). 16. The electrical component unit (14) such that the dimension along the longitudinal direction of the indoor unit outlet (11) of the electrical component unit (14) is substantially the same as the longitudinal dimension of the outlet (11). 14) An air conditioner comprising: 17. The dimension of the electrical component unit (14) along the axial direction of the indoor unit fan (9) is substantially the same as the longitudinal dimension of the indoor unit casing (1) or the outlet (11).
An air conditioner characterized by arranging an electrical component unit (14) so as to form a law . 18. An electrical component unit (14) having an extra space extending in the longitudinal direction formed in the indoor unit casing (1) and extending along the extra space, the electrical component unit having an increased dimensional ratio in the longitudinal direction . The electrical component unit (14) is an indoor unit.
The longitudinal dimension of the casing (1) or the outlet (11)
An air conditioner characterized Rukoto which have a longitudinal dimension substantially the same. 19. A heat exchanger (4) is arranged in an indoor unit casing (1), an outlet (11) is provided below the indoor unit casing (1), and an upper side is provided above the outlet (11). And a drain pan (13) provided above the blower outlet (11) and below the heat exchanger (4) and the indoor unit casing (1). The electrical component unit (1) is located between the electronic component unit (1) and the front panel (7).
4), and the electrical component unit (14)
Longitudinal direction of indoor unit casing (1) or outlet (11)
An air conditioner having substantially the same longitudinal dimension as the dimension . 20. The electric component, wherein an electric component unit (14) is arranged at a position on the inner rear side of the indoor unit casing (1) or at a position on the outer rear side of the indoor unit casing (1).
Unit (14) is indoor unit casing (1) or blowout
Has a longitudinal dimension approximately the same as the longitudinal dimension of the mouth (11)
An air conditioner characterized by: 21. The electrical component unit (14) is provided with a longitudinal dimension of the indoor unit casing (1) or an outlet (1).
The length in the longitudinal direction of 1) or the length of the fan (9) along the axial direction is at least one-third or more of the length in the longitudinal direction of the indoor unit casing (1) or the outlet (11). The heat exchanger (4) in the indoor unit casing (1) is formed by combining a front heat exchanger (2) and a rear heat exchanger (3) in an inverted V-shape. The air conditioner, wherein the product unit (14) is arranged so as to connect the two heat exchangers (2) and (3) at the intersection of the two heat exchangers (2) and (3). 22. The surplus space is formed extending longitudinally in the indoor casing (1) inside, arranged electric component unit with enhanced above longitudinal dimension ratio along this extra space (14), the indoor Heat exchanger in machine casing (1)
(4) The front heat exchanger (2) and the rear heat exchanger (3)
Are combined in an inverted V shape, and the electric component unit (1
4) at the intersection of both heat exchangers (2) and (3)
It is arranged so that heat exchangers (2) and (3) may be connected.
An air conditioner characterized by that. 23. A heat exchanger (4) in an indoor unit casing (1) is formed by combining a front heat exchanger (2) and a rear heat exchanger (3) in an inverted V-shape. An air conditioner characterized in that an electric component unit (14) is arranged so as to connect both heat exchangers (2) and (3) at the intersection of the exchangers (2) and (3).